Clinker-cooler.



R. R. BEAR.

CLINKER COOLER.

APPLICATION YILBD JAN. is, 1912 Patented Aug. 6, 1912.

RAYMOND R. BEAR, ALLEN TOWN, PENNSYLVANIA.,

CLINKER-COOLER.

Specification of Letters Patent.

Application feed January 13, 1912. serial No. 671,063.

' citizen of the United States, and resident of Allentown, county of Lehigh, and State of Pennsylvania, have made a certain new and useful Invention Relating to Clinker-Cool- .e1-s, of which the following is a specification,

taken in connection with the accompanying drawings, which form part of the same.

This invention relates especially to coolers for the Portland cement clinker or other granular material, the cooler comprising ak number of superimposed hoppers supported on a skeleton frame work so as to allow the free circulation of air around them and also preferably having an air circulation through the material feeding gradually down through these hoppers.

In-the accompanying drawings showing in a somewhat diagrammatic way an illustrative embodime lof this invention, Figure 1 is an elevation partly in section. Fig. 2 isa horizontal section through one of the hoppers; andFig-t is ,an enlarged vertical section showing the baseand adjacent parts.

As shown somewhat diagrammatically in Fig. 1` the cooler may comprise any desirednuniber ofvihoppers or receivers preferably arranged substantially Vvertically one above another, and each of these hoppers 2 may be conveniently formed with a. cylindrical body and an attached hoppered bottom which may be substantially conical. The hoppers may be conveniently mounted by attaching eachof them to a suitable skeleton frame Work, such as a series of columns or I-beams 1 arranged-.around the hoppers and secured thereto in any desired way,'the hoppers being' preferably so spaced that the clinker or other material discharged from the hoppered bottoms is all received in the hopper below, since the upper edge of each of the lower hoppers is above the angle of repose of the material fed thereto. A suitable base l5 of cylindricalor other form may be arranged below the series of hoppers to receive the material 1 therefrom and this base may if desired be provided with a suitable floor or lining 14 of reinforced concrete or the like and also with one or more discharge doors 13 having suitable adjusting slides or the 'like to control the discharge of material therethrough. For some purposes it is desirable to arrange anoverflow or emergency discharge chute, such as 3, in connection with one of the upper hoppers of the cooler soithat when desired the control slide 16 may be opened and the material discharged to the extent desired` through this discharge chute without allowing the material to pass entirely through the cooler.

It is desirable in some cases to provide a suitable Ainternal air cooling arrangement which may be in the form of a suitable airblast pipe 6 arranged substantialiy centrally through the series of hoppers and provided with air holes such as 10 at intervals along the pipe so as to ldischarge air through the surrounding material and promote the cooling of the central portions of the descending column of granular material in the hoppers. This blast pipe may be conveniently mounted on a special bracket 9 formed integral with or otherwise attached to the elbow 8 and the pipe may be supported at the` proper intervals by braces 7 extending out to the columns 1 and connectcd to suitable guides 5 embracingr the pipe as indicated in Figs. 2 and 3. It is desirable to have suitable hoods such as- 12 arranged adjacent the air holes 10 in the blast pipe so as to prevent access of the material to these Patented Aug. 6, 1912.

holes and thus insure the free discharge of air therefrom at all times. These vdepending hoods l2 may be secured in positionin any desired way, as for instance by tightly bolt-ing the sectional hoods upon the blast pipe, if desired adjacent the pipe llanges 11 joining the various sections of this pipe which may extend 11p through the series of hoppers and have its upper end provided with a suitable closing cap 1S shown in dotted lines in Fig. 1.

The hot granular material, such for instance as cement clinker delivered from the rotary kilns in which it is burned, may be fed to the cooler through a suitable chute such as 17 delivering it lnto the upper hopper 2 of the cooler. The material under normal conditions forms the conical piles in the various hoppers and is fed down through the cooler gradually as determined by the amount which is withdrawn from the discharge doors 18 in the base which is preferably located at suilic'ient height so as lo allow a suitable conveyer of any description to run beneath the cooler and receiveY the material directly from the discharge doors. The columns Aform-a skeleton supporting frame work for the ho pers and base of the cooler and .allow the ree circulation of air around.` these parts so as to lob cool the same "Tand also come into Y direct contact with the inclined upper surfaces of the hea-ps of material in each hopper so as to exert an important cooling influence thereon as different parts o f the material are exposed in this way as it feeds slowly down through the cooler. A further cooling action may be secured by the `cold air dischar ed into the material from the blast pipe 6 aving its lower ortion extending through the base, connect with the fan and delivering air at a pressure of a few ounces suiiicient to force its way through the material in the cooler.

Having described this invention in connection with illustrative embodiments. forms, proportions and arrangements of parts, to the details of which disclosure the invention is not of course to be limited,

what is claimed as new and what is desiredl to be secured by Letters Patent is set forth in the appended claims.

1. In coolers for cement clinker or other granular material, a series of receiving hoppers having substantially cylindrical sides `and conical hoppered bottoms, a skeleton supporting frame work composed of a series discharge door and mounted in said frame workbelow said hoppers, a blast pipe mounted substantially centrally within said hoppers and provided with sets of air holes and with depending hoods mounted on the joints in said blast pipe and coperating gradually feeds down therethrough while allowing-free access of air to said ho ers and the upper surface of the material t erein, a base provided with a dischar e door and mounted in said frame work be ow'said hoppers, a blast pipe mounted substantially" centrally within said hoppers androvided with sets of air holes through whic currents from said blast pipe are force through theksurrounding material within said hoppers.

3. In coolers for cement cllhker or other l granular material, a series of receiving hoppers having substantially hoppered bottoms, a skeleton supporting frame work secured to said hoppers s acmg them apart allowing free access o air to said hoppers and the upper surface of the material therein, a blast pi e mounted within said hoppers and provi ed with sets of air holes through which coolin currents from said blast pipe are forced trough the surrounding material within said hoppers.

RAYMOND R. BEAR. i

lVitnesses:

HARRY L. DUNCAN, Jnssm B. KAY.

ho f." 

